Fastener for container covers



Dec. 1, 1931. 'w s Ro 1,834,660

FASTENER FOR CONTAINER COVERS Filed Apfil 14, 1927 E1 Hf Ii llf //v/ /vr0 7? AW 15!; P7. WALS TRON B? 12 15 H770 PNEYS Patented Dec. 1, 1931 Miran STATES PATENT OFFICE AXEL M. WAISTROM, 0F MINNEAPOLIS, MINNESOTA, ASSIGNOR TO ELGIN BUTTER .TUB COMPANY, OF ELG-INQILLINOIS, A CORPORATION OF ILLINOIS rAsTENER r03 CONTAINER COVERS Application filed April 14.,

' 5 ous kinds and shapes, it particularly'is designed, and in the embodiment of the invention illustrated is shown as appliedto a cylindrical container. Such containers which are often of slightly tapered form, are now 10 commonly used as tubs for containing butter,

lard and other similar materials:

I It is desirable, in such a container, to have some means which will positively hold the cover in place 011 the container or tub, and it is further'desirable to have such means which will not protrude so as to catch on the hands of the persons handling the tub or on other objects. It is also desirable to have a fastening means which will prevent any rotative movement of the cover and which will be easily applied and simple and ineX- pensive to make. I p

It is an object of this invention, therefore, to provide a very simple and efficient means for holding a cover on a container such as a butter tub.

It is another object of the invention to-provide a simple and efficient holding means for a container cover having diverging members adapted to be engaged in the material of the tub.

It is still another object of the invention to provide a simple and efficient holding means for a tub adapted to be made from a simple rod bent into U-shape and having its bight portion further bent into a hook or Ushaped portion, adapt-ed to engage with the cover.

It is also an object of this invention to provide a novel method of making a fastener for a container.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings, in which like reference characters refer to similar parts throughout the several views and in which Fig. 1 is a view in side elevation of the top 1927. Serial No. 183,692.

portion of the container with the cover and holding means; r

Fig. 2 is a vertical radial section through one side of the container and cover;

Fig. 3 is a view in side elevation of the holding means in uncompleted form;

Fig. 4: is a View in side elevation of the device shown in Fig. 3; Fig. 5 is a perspective form of the holder; Y Referring to thedrawings, a cylindrical container such as a butter tub is shown at 10 having thereon the cover 11. While this cover may be of various forms having a flange depending at the side of the tub, in the embodiment of the invention illustrated the particular cover shown has a central portion lla'with a rim or flange portion 111), the cover being beveled at its edge as shown at 11c and flange 116 being rolled about and thus secured'to said beveled portion 110 as shown at 1103. The flange 11?) as shown has a bead 116 at its lower edge with its concave side directed inwardly. The cover 11 is provided at circumferentially spaced points just above the bead 116 with somewhat elongated slots 11f extending circumferentially of the rim.

The fastener forming the subject matter view of a modified of the present invention is formed from a length of simple round rod. The portion 15a of the fastener is bent substantially midway of its lengthabout an axis extending parallel toits'flat side so that it is of U-shaped form shown at 15c in Fig. 1. The round portions 15cZ of the fastener are then bent into diverging form as shown in Fig. 1, and the fastener is then in condition to be applied to the container.

In applying the fastener to the tub, the portion 150 is hooked through the slots 117. Theportions 15?) are then driven into the material-of the tub as shown in Figs. 1 and 2, the cover being pulled down tight on the top of the container before the portions 155 are driven in. When the fastener is then in .place on the tub, the lid will be held securetub. There is thus no possibility of the hook straightening and in fact, the material of the fastener is too stiff for any such straightening movement. It will be seen that there are no projections on the fastener which mightcatch on the hands or other objects, and there are no fasteners which might become loose and protrude to form such projections.

lhe diverging legs 15d of the fastener give a.

trussed effect so that the fastener is quite rigid against lateral or circumferential movement. The cover 11 is thus held firmly against any rotative movement on the tub.

In the modification shown in Fig. .6, a strip of material 16 is shown, which may also be used to form a fastener for the cover 11. The strip 16 is reversely bent at one end as shown at 16a in Fig. 5. Two or more fasteners 17 are driven through the other end of the strip. When the strip is applied to the container, the hook portion 16a will be passed through one of the slots 117', the cover drawn down tightly andthe nails or fasteners 17 will be driven into thetub. The cover will thus be held tightly in place.

From the above description it is seen that applicant has provided a very simple and 'eflicient holding means for a container cover and the holding means is made from simple material and can be easily and inexpensively produced. The said holding means is easily applied and very efficient in operation, holding the cover tightly in place on the container and acting to prevent anyv rotative movement thereof. The device has been amply demonstrated in actual practice and found to be very successful and efficient.

It will, of course, be understood that various changes may be made in the form, de tails, arrangement and proportions of the device and in the steps and sequence'of steps of the method, without departing from the scope of applicants invention, which, generally stated, consists in a method and device capable of carrying out the objects above set forth, such as disclosed and'defined in the appended claims.

What is claimed is 1. A fastening means for the cover of a container comprising a rod bent substantially at its central portion and having its bight portion flattened for a considerable distance so as to be bent reversely to form ahook adapted to engage through a slot adjacent the edge of said cover, the unflattened portions of said rod extending from said flattened portion in diverging relation and having their end portions bent substantially at right angles and sharpened so as to enter the material of said container.

2. A fastening means for the cover of a bight portion at right angles to said first mentioned bend to form a hook having its sides in close proximity, said hook extending through said slot and engaging the same with its curved end, the free ends of said rod diverging and having inwardly bent sharpened ends adapted to be driven into the side of said container.

3. A fastener for container covers comprising a hook adapted to be extended through a portion of a cover, said hook having lower laterally diverging portions having ends adapted to be embedded in the side of the container below the cover to secure the cover in place, stabilize the same and prevent sliding movement thereof relative to the container.

4. A fastener for container covers having a looped upper end forming a hook adapted to be inserted through a. slot in the edge of a container cover, said fastener having lower portions joining the outer side of said looped upper end and extending downwardly in laterally diverging relation and termlnating in inwardly bent pointed ends adapted to be driven into the side of the container below the cover and one at either side 'of said looped upper end.

5. In combination, a tub provided with a cover having a rim projecting downwardly tub and provided with abead having spaced slots cut therethrough, and a plurality of fasteners, each fastener having a hook portion at its upper end bent inwardly and downwardly through one of said slots in said rim and bearing against the side of the container, said fastener having a lower end j oining the outer portion of the upper end of the fastener and overlapping said hook portion, the lower end of the fastener being secured to the side of the tub below said rim.

In testimony whereof I affix my signature.

. AXEL M. WALSTROM.

container, which cover has a depending rim central portion to have closely adjacent par- 'allel sides connected by a bight portion, said device being bent some distance from said ,95 over the upper portions of the side of the 

